From: Marc-Andre Lafortune <redmine@...>
Date: 2010-04-03T02:25:11+09:00
Subject: [ruby-core:29229] [Bug #3081] lib/http wrong behavior for chunked reading

Bug #3081: lib/http wrong behavior for chunked reading
http://redmine.ruby-lang.org/issues/show/3081

Author: Marc-Andre Lafortune
Status: Open, Priority: Normal
Category: lib, Target version: 1.9.2
ruby -v: ruby 1.9.2dev (2010-03-03 trunk 26805) [x86_64-darwin10.2.0]

Take the following code:

  require 'net/http'
  uri = URI.parse("http://banners.wunderground.com/banner/krd_condV2/language/www/US/FL/Miami.gif")
  http = Net::HTTP.new(uri.host, uri.port)

  http.request_get(uri.request_uri) do |res|
    res.read_body do |chunk|
      puts "read #{chunk.size} bytes"
      break
    end
    puts "Done"
  end
  puts "Bye"


in Ruby 1.8.7 or in 1.9.2dev, it outputs the following:

  read 1024 bytes
  Done
  /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:2433:in `read_chunked': wrong chunk size line: (Net::HTTPBadResponse)
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:2411:in `read_body_0'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:2371:in `read_body'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:2396:in `body'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:2335:in `reading_body'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:1185:in `transport_request'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:1169:in `request'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:1162:in `block in request'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:627:in `start'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:1160:in `request'
  	from /usr/local/rubydev/lib/ruby/1.9.1/net/http.rb:1073:in `request_get'
  	from b.rb:5:in `<main>'


There's apparently nothing wrong with the server; remove the 'break' statement and you get instead:

  read 1024 bytes
  read 597 bytes
  read 2 bytes
  Done
  Bye


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